WP Fastest Cache <= 0.8.9.0 - Directory Traversal to Arbitrary File Deletion

2022-01-24 00:00

Sebastian Neef

Strategic Overview

Status

Patched in 0.8.9.1

Affected PluginWP Fastest Cache – WordPress Cache Plugin

Affected Version<= 0.8.9.0

CVSS6.5Medium

CVECVE-2019-6726

View all WP Fastest Cache – WordPress Cache Plugin vulnerabilities

Vulnerability Overview

The WP Fastest Cache plugin through 0.8.9.0 for WordPress allows remote attackers to delete arbitrary files because wp_postratings_clear_fastest_cache and rm_folder_recursively in wpFastestCache.php mishandle ../ in an HTTP Referer header.

Technical Analysis

REMEDIATION: Update to version 0.8.9.1, or a newer patched version --- IDENTIFIER: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')) The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

External References

https://www.cve.org/CVERecord?id=CVE-2019-6726 https://www.wordfence.com/threat-intel/vulnerabilities/id/6d1ad409-d5d3-4231-9a7c-de881c7b9de2

CVSS Vector

6.5

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H

Base

Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityHigh

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